Overall Green alert Tropical Cyclone for ALPHA-20
in Portugal, Spain

Event summary

Tropical Cyclone ALPHA-20 can have a low humanitarian impact based on the maximum sustained wind speed, exposed population and vulnerability.

GDACS ID TC 1000720
Name ALPHA-20
From - To 18 Sep - 19 Sep
Exposed countries Portugal, Spain
Exposed population No people in Category 1 or higher
Maximum wind speed 83 km/h Tropical storm
Maximum storm surge 0.3 m (18 Sep 18:30 UTC)
Vulnerability Low (Portugal)

GDACS Score

For more info on GDACS alert score click here.
Wind Storm surge Rainfall GDACS score
GDACS NOAA 46 km/h 0.3 m n.a. 0.5
Single TC: maximum expected impact (wind, storm surge, rainfall)
HWRF n.a n.a. n.a. n.a.
GFS 65 km/h 0.7 m 57 mm 0.5
ECMWF 58 km/h 0.7 m 99 mm 0.5
Maximum expected impact (wind, storm surge and rainfall) using different data sources.
Virtual OSOCC
Meteo assessment
Satellite products
Analytical products
Detailed event map. European Union, 2024. Map produced by EC-JRC.
The boundaries and the names shown on this map do not imply official endorsement or acceptance by the European Union.

Updates on volcanic activity (Smithsonian)

Latest media headlines

Articles: 510 | About casualties: 38 | Last hour: 0

Slow-moving Tropical Storm Beta threatens to be a rainfall event in Te ... Mon, 21 Sep 2020 07:06:00 +0200.

"As Tropical Storm Beta approaches, I call on all Texans in the Gulf Coast region to heed the advice of local officials and take the necessary precautions to keep themselves and their loved ones out of harm's way," Abbott said Sunday. "The
...(more)
Slow-moving Tropical Storm Beta threatens to be a rainfall eventMon, 21 Sep 2020 05:04:00 +0200.

"As Tropical Storm Beta approaches, I call on all Texans in the Gulf Coast region to heed the advice of local officials and take the necessary precautions to keep themselves and their loved ones out of harm's way," Abbott said Sunday. "The
...(more)
Flash flood watch in effect in U.S. Houston as tropical storm draws cl ... Mon, 21 Sep 2020 05:01:00 +0200.

Flash flood watch in effect in U.S. Houston as tropical storm draws closer to coast. The National Weather Service on Sunday issued a Flash Flood Watch for U.S. Houston area from Sunday through Tuesday as tropical storm Beta continued movin
...(more)
Hurricane Tropical Storm Beta forms in the Gulf of Mexico Scott Sutton ... Mon, 21 Sep 2020 02:59:00 +0200.

MIAMI — A second tropical system with a Greek alphabet name formed Friday afternoon, according to the National Hurricane Center. Little change in strength is forecast during the next couple of days before Beta reaches the Texas coast. Weake
...(more)

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Estimated casualties (PAGER)

USGS estimates the number of casualties for each earthquake for the Prompt Assessment of Global Earthquakes for Response (PAGER) product.
The graph shows the current fatalities estimate.

Exposed population

Data, images, links, services and documents

For this events, GDACS has links to information from the following sources: EC-JRC (38), (2), WMO (1), INFORM (2),